| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /* |
| * Test Name: stat02 |
| * |
| * Test Description: |
| * Verify that, stat(2) succeeds to get the status of a file and fills the |
| * stat structure elements though process doesn't have read access to the |
| * file. |
| * |
| * Expected Result: |
| * stat() should return value 0 on success and the stat structure elements |
| * should be filled with specified 'file' information. |
| * |
| * Algorithm: |
| * Setup: |
| * Setup signal handling. |
| * Create temporary directory. |
| * Pause for SIGUSR1 if option specified. |
| * |
| * Test: |
| * Loop if the proper options are given. |
| * Execute system call |
| * Check return code, if system call failed (return=-1) |
| * Log the errno and Issue a FAIL message. |
| * Otherwise, |
| * Verify the Functionality of system call |
| * if successful, |
| * Issue Functionality-Pass message. |
| * Otherwise, |
| * Issue Functionality-Fail message. |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * Delete the temporary directory created. |
| * |
| * Usage: <for command-line> |
| * stat02 [-c n] [-e] [-f] [-i n] [-I x] [-p x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -f : Turn off functionality Testing. |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * History |
| * 07/2001 John George |
| * -Ported |
| * |
| * Restrictions: |
| * |
| */ |
| #include <stdio.h> |
| #include <sys/types.h> |
| #include <sys/fcntl.h> |
| #include <sys/stat.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <signal.h> |
| #include <pwd.h> |
| |
| #include "test.h" |
| |
| #define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH |
| #define TESTFILE "testfile" |
| #define FILE_SIZE 1024 |
| #define BUF_SIZE 256 |
| #define NEW_MODE 0222 |
| #define MASK 0777 |
| |
| char *TCID = "stat02"; |
| int TST_TOTAL = 1; |
| |
| uid_t user_id; /* eff. user id/group id of test process */ |
| gid_t group_id; |
| char nobody_uid[] = "nobody"; |
| struct passwd *ltpuser; |
| |
| void setup(); |
| void cleanup(); |
| |
| int main(int ac, char **av) |
| { |
| struct stat stat_buf; /* stat structure buffer */ |
| int lc; |
| const char *msg; |
| |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| /* |
| * Call stat(2) to get the status of |
| * specified 'file' into stat structure. |
| */ |
| TEST(stat(TESTFILE, &stat_buf)); |
| |
| if (TEST_RETURN == -1) { |
| tst_resm(TFAIL, |
| "stat(%s, &stat_buf) Failed, errno=%d : %s", |
| TESTFILE, TEST_ERRNO, strerror(TEST_ERRNO)); |
| } else { |
| stat_buf.st_mode &= ~S_IFREG; |
| /* |
| * Verify the data returned by stat(2) |
| * aganist the expected data. |
| */ |
| if ((stat_buf.st_uid != user_id) || |
| (stat_buf.st_gid != group_id) || |
| (stat_buf.st_size != FILE_SIZE) || |
| ((stat_buf.st_mode & MASK) != NEW_MODE)) { |
| tst_resm(TFAIL, "Functionality of " |
| "stat(2) on '%s' Failed", |
| TESTFILE); |
| } else { |
| tst_resm(TPASS, "Functionality of " |
| "stat(2) on '%s' Succcessful", |
| TESTFILE); |
| } |
| } |
| tst_count++; /* incr TEST_LOOP counter */ |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |
| |
| /* |
| * void |
| * setup() - Performs setup function for the test. |
| * Creat a temporary directory and change directory to it. |
| * Creat a testfile and write some data into it. |
| * Modify the mode permissions of testfile such that test process |
| * has read-only access to testfile. |
| */ |
| void setup(void) |
| { |
| int i, fd; /* counter, file handle for file */ |
| char tst_buff[BUF_SIZE]; /* data buffer for file */ |
| int wbytes; /* no. of bytes written to file */ |
| int write_len = 0; |
| |
| tst_require_root(NULL); |
| |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| /* Switch to nobody user for correct error code collection */ |
| ltpuser = getpwnam(nobody_uid); |
| if (setuid(ltpuser->pw_uid) == -1) { |
| tst_resm(TINFO, "setuid failed to " |
| "to set the effective uid to %d", ltpuser->pw_uid); |
| perror("setuid"); |
| } |
| |
| /* Pause if that option was specified |
| * TEST_PAUSE contains the code to fork the test with the -i option. |
| * You want to make sure you do this before you create your temporary |
| * directory. |
| */ |
| TEST_PAUSE; |
| |
| tst_tmpdir(); |
| |
| if ((fd = open(TESTFILE, O_RDWR | O_CREAT, FILE_MODE)) == -1) { |
| tst_brkm(TBROK, cleanup, |
| "open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d : %s", |
| TESTFILE, FILE_MODE, errno, strerror(errno)); |
| } |
| |
| /* Fill the test buffer with the known data */ |
| for (i = 0; i < BUF_SIZE; i++) { |
| tst_buff[i] = 'a'; |
| } |
| |
| /* Write to the file 1k data from the buffer */ |
| while (write_len < FILE_SIZE) { |
| if ((wbytes = write(fd, tst_buff, sizeof(tst_buff))) <= 0) { |
| tst_brkm(TBROK | TERRNO, cleanup, "write to %s failed", |
| TESTFILE); |
| } else { |
| write_len += wbytes; |
| } |
| } |
| |
| if (close(fd) == -1) { |
| tst_resm(TWARN | TERRNO, "closing %s failed", TESTFILE); |
| } |
| |
| /* Modify mode permissions on the testfile */ |
| if (chmod(TESTFILE, NEW_MODE) < 0) { |
| tst_brkm(TBROK | TERRNO, cleanup, "chmodding %s failed", |
| TESTFILE); |
| } |
| |
| /* Get the uid/gid of the process */ |
| user_id = getuid(); |
| group_id = getgid(); |
| |
| } |
| |
| /* |
| * cleanup() - performs all ONE TIME cleanup for this test at |
| * completion or premature exit. |
| * Remove the temporary directory and file created. |
| */ |
| void cleanup(void) |
| { |
| |
| tst_rmdir(); |
| } |